Struct Site 

pub struct Site {
    pub si: usize,
    pub pos: usize,
    pub ri: usize,
    pub ci: usize,
}

One location in the source text: the index reached, and the row and column that index sits at. It is the same data TypeScript carries as the loose sI/rI/cI fields on both Point and Token (ts/src/lexer.ts), and as the ScanOut record its scan driver writes back — naming it once is what keeps those uses in step.

The extra field is pos, and it is not extra data: TypeScript indexes source by UTF-16 code unit and reports that same number in a diagnostic, while Rust slices by UTF-8 byte. So si is the offset this port slices with and pos is the offset it REPORTS, and the two together say what TypeScript’s single sI says. See go/doc/differences.md and DIVERGENCE.md “Column positions for astral characters” for what that costs at the edges.

Deliberately NOT carrying a length: Point::len is the length of the whole source and Token::len is the length of that token’s matched text, so the two mean different things and only the position is shared.

Fields

si: usize

pos: usize

ri: usize

ci: usize

Trait Implementations

impl Clone for Site

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Site

impl Debug for Site

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Site

fn default() -> Self

Returns the “default value” for a type.

impl Display for Site

fn fmt(&self, formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Site

impl PartialEq for Site

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Site